Diff: file.cpp

Revision:

0:bdb53686c194

Child:

1:6c7141895545

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/file.cpp	Mon Jul 04 15:16:45 2011 +0000
@@ -0,0 +1,117 @@
+#include "mbed.h"
+#include "weather.h"
+#include "SDHCFileSystem.h"
+#include "MSCFileSystem.h"
+#include "ConfigFile.h"
+
+static SDFileSystem sd(p5, p6, p7, p8, "sd");
+static LocalFileSystem *local;
+static MSCFileSystem *usb;
+static DigitalIn sd_cd(p21);
+ConfigFile cfg;
+static char filename[30] = "";
+
+int write_log (const char *buf) {
+    FILE *fp;
+
+    if (filename[0] == 0) return 0;
+
+    LED_FILE_ON;
+    fp = fopen(filename, "a");
+    if (fp) {
+        fprintf(fp, buf);
+        fclose(fp);
+    } else {
+        LED_FILE_OFF;
+        return -1;
+    }
+    LED_FILE_OFF;
+    return 0;
+}
+
+int init_file () {
+    int seq = 0;
+    char buf[128], buf2[10] = "";
+    FILE *fp;
+
+    if (cfg.getValue("FILE", buf, sizeof(buf))) {
+
+        if (strncmp(buf, "SD", 2) == 0) {
+            strcpy(buf2, "/sd/");
+        } else
+        if (strncmp(buf, "USB", 3) == 0) {
+            usb = new MSCFileSystem("usb");
+            if (usb == NULL) return -1;
+            strcpy(buf2, "/usb/");
+        } else {
+            return -1;
+        }
+
+        // seq num
+        strcpy(filename, buf2);
+        strcat(filename, "weather.seq");
+        fp = fopen(filename, "r");
+        if (fp) {
+            fscanf(fp, "%d", &seq);
+            fclose(fp);
+        }
+        seq ++;
+
+        // save seq num
+        fp = fopen(filename, "w");
+        if (fp) {
+            fprintf(fp, "%d", seq);
+            fclose(fp);
+        }
+
+        // csv filename
+        sprintf(filename, "%sw%05d.csv", buf2, seq);
+        pc.printf("CSV Filename: %s\r\n", filename);
+    }
+    return 0;
+}
+
+int init_conf () {
+
+    // load config
+    LED_FILE_ON;
+    if (cfg.read("/sd/" CONFIG_FILE)) {
+        // from sd
+        
+        LED_FILE_OFF;
+        cfg.setValue("DIR", "/sd/");
+
+    } else {
+        local = new LocalFileSystem("local");
+        if (local == NULL) return -1;
+        if (cfg.read("/local/" CONFIG_FILE)) {
+            // from usb
+
+            LED_FILE_OFF;
+            cfg.setValue("DIR", "/local/");
+
+        } else {
+            // none
+            LED_FILE_OFF;
+            return -1;
+        }
+    }
+
+#ifdef DEBUG
+    pc.printf("Configration: %d\r\n", cfg.getCount());
+#endif
+    return 0;
+}
+
+char* chop (char *s) {
+    int i;
+
+    for (i = strlen(s) - 1; i >= 0; i --) {
+        if (s[i] == ' ' || s[i] == '\n' || s[i] == '\r') {
+            s[i] = 0;
+        } else {
+            break;
+        }
+    }
+    return s;
+}